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Material Safety Data Sheet

R-409A

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION R-409A National Refrigerants, Inc. 661 Kenyon Avenue Bridgeton, New Jersey 08302 IN CASE OF EMERGENCY CALL: CHEMTREC: 1-800-424-9300 PRODUCT NAME: DISTRIBUTOR:

FOR MORE INFORMATION CALL: (Monday-Friday, 8:00am-5:00pm) 1-800-262-0012 2. COMPOSITION / INFORMATION ON INGREDIENTS

INGREDIENT NAME Chlorodifluoromethane (HCFC-22) Chlorodifluoroethane (HCFC-142b) Chlorotetrafluoroethane (HCFC-124)

CAS NUMBER WEIGHT % 75-45-6 60 75-68-3 15 2837-89-0 25

Trace impurities and additional material names not listed above may also appear in Section 15 toward the end of the MSDS. These materials may be listed for local "Right-To-Know" compliance and for other reasons. 3. HAZARDS IDENTIFICATION EMERGENCY OVERVIEW: Colorless, volatile liquid with ethereal and faint sweetish odor. Non-flammable material. Overexposure may cause dizziness and loss of concentration. At higher levels, CNS depression and cardiac arrhythmia may result from exposure. Vapors displace air and can cause asphyxiation in confined spaces. At higher temperatures, (>250°C), decomposition products may include Hydrochloric Acid (HCL), Hydrofluoric Acid (HF) and carbonyl halides. POTENTIAL HEALTH HAZARDS SKIN: Irritation would result from a defatting action on tissue. Liquid contact could cause frostbite. EYES: Liquid contact can cause severe irritation and frostbite. Mist may irritate. INHALATION: R-409A is low in acute toxicity in animals. When oxygen levels in air are reduced to 12-14% by displacement, symptoms of asphyxiation, loss of coordination, increased pulse rate and deeper respiration will occur. At high levels, cardiac arrhythmia may occur.

____________________________________________________________________________________________________________ MSDS: R-409A Page 1 of 7 Current Issue Date: December, 2008

R-409A

INGESTION: Ingestion is unlikely because of the low boiling point of the material. Should it occur, discomfort in the gastrointestinal tract from rapid evaporation of the material and consequent evolution of gas would result. Some effects of inhalation and skin exposure would be expected. DELAYED EFFECTS: None known. Ingredients found on one of the OSHA designated carcinogen lists are listed below. INGREDIENT NAME No ingredients listed in this section 4. FIRST AID MEASURES NTP STATUS IARC STATUS OSHA LIST

SKIN: Promptly flush skin with water until all chemical is removed. If there is evidence of frostbite, bathe (do not rub) with lukewarm (not hot) water. If water is not available, cover with a clean, soft cloth or similar covering. Get medical attention if symptoms persist. EYES: Immediately flush eyes with large amounts of water for at least 15 minutes (in case of frostbite water should be lukewarm, not hot) lifting eyelids occasionally to facilitate irrigation. Get medical attention if symptoms persist. INHALATION: Immediately remove to fresh air. If breathing has stopped, give artificial respiration. Use oxygen as required, provided a qualified operator is available. Get medical attention. Do not give epinephrine (adrenaline). INGESTION: Ingestion is unlikely because of the physical properties and is not expected to be hazardous. Do not induce vomiting unless instructed to do so by a physician. Because of the possible disturbances of cardiac rhythm, catecholamine drugs, such as epinephrine, should be used with special caution and only in situations of emergency life support. Treatment of overexposure should be directed at the control of symptoms and the clinical conditions.

ADVICE TO PHYSICIAN:

5.

FIRE FIGHTING MEASURES

FLAMMABLE PROPERTIES FLASH POINT: Gas, not applicable per DOT regulations FLASH POINT METHOD: Not applicable AUTOIGNITION TEMPERATURE: <750°C UPPER FLAME LIMIT (volume % in air): None* LOWER FLAME LIMIT (volume % in air): None* *Based on ASHRAE Standard 34 with match ignition FLAME PROPAGATION RATE (solids): Not applicable OSHA FLAMMABILITY CLASS: Not applicable EXTINGUISHING MEDIA: Use any standard agent ­ choose the one most appropriate for type of surrounding fire (material itself is not flammable)

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R-409A

UNUSUAL FIRE AND EXPLOSION HAZARDS: R-409A is not flammable at ambient temperatures and atmospheric pressure. However, this material will become combustible when mixed with air under pressure and exposed to strong ignition sources. Contact with certain reactive metals may result in formation of explosive or exothermic reactions under specific conditions (e.g. very high temperatures and/or appropriate pressures). SPECIAL FIRE FIGHTING PRECAUTIONS/INSTRUCTIONS: Firefighters should wear self-contained, NIOSH-approved breathing apparatus for protection against possible toxic decomposition products. Proper eye and skin protection should be provided. Use water spray to keep fire-exposed containers cool. 6. ACCIDENTAL RELEASE MEASURES

IN CASE OF SPILL OR OTHER RELEASE: (Always wear recommended personal protective equipment.) Evacuate unprotected personnel. Protected personnel should remove ignition sources and shut off leak, if without risk, and provide ventilation. Unprotected personnel should not return until air has been tested and determined safe, including lowlying areas. Spills and releases may have to be reported to Federal and/or local authorities. See Section 15 regarding reporting requirements. 7. HANDLING AND STORAGE

NORMAL HANDLING: (Always wear recommended personal protective equipment.) Avoid breathing vapors and liquid contact with eyes, skin or clothing. Do not puncture or drop cylinders, expose them to open flame or excessive heat. Use authorized cylinders only. Follow standard safety precautions for handling and use of compressed gas cylinders. R-409A should not be mixed with air above atmospheric pressure for leak testing or any other purpose. STORAGE RECOMMENDATIONS: Store in a cool, well-ventilated area of low fire risk and out of direct sunlight. Protect cylinder and its fittings from physical damage. Storage in subsurface locations should be avoided. Close valve tightly after use and when empty. 8. EXPOSURE CONTROLS / PERSONAL PROTECTION

ENGINEERING CONTROLS: Provide local ventilation at filling zones and areas where leakage is probable. Mechanical (general) ventilation may be adequate for other operating and storage areas. PERSONAL PROTECTIVE EQUIPMENT SKIN PROTECTION: Skin contact with refrigerant may cause frostbite. General work clothing and gloves (leather) should provide adequate protection. If prolonged contact with the liquid or gas is anticipated, insulated gloves constructed of PVA, neoprene or butyl rubber should be used. Any contaminated clothing should be promptly removed and washed before reuse. ____________________________________________________________________________________________________________ MSDS: R-409A Page 3 of 7 Current Issue Date: December, 2008

R-409A

EYE PROTECTION: For normal conditions, wear safety glasses. Where there is reasonable probability of liquid contact, wear chemical safety goggles. RESPIRATORY PROTECTION: None generally required for adequately ventilated work situations. For accidental release or non-ventilated situations, or release into confined space, where the concentration may be above the PEL of 1,000 ppm, use a self-contained, NIOSHapproved breathing apparatus or supplied air respirator. For escape: use the former or a NIOSH-approved gas mask with organic vapor canister. ADDITIONAL RECOMMENDATIONS: Where contact with liquid is likely, such as in a spill or leak, impervious boots and clothing should be worn. High dose-level warning signs are recommended for areas of principle exposure. Provide eyewash stations and quick-drench shower facilities at convenient locations. For tank cleaning operations, see OSHA regulations, 29 CFR 1910.132 and 29 CFR 1910.133. EXPOSURE GUIDELINES INGREDIENT NAME Chlorodifluoromethane Chlorodifluoroethane Chlorotetrafluoroethane *

ACGIH TLV 1000 ppm TWA (8hr) None None

OSHA PEL 1000 ppm TWA (8hr) None None

OTHER LIMIT None *1000 ppm TWA (8hr) *1000 ppm TWA (8hr)

= Workplace Environmental Exposure Level (AIHA)

OTHER EXPOSURE LIMITS FOR POTENTIAL DECOMPOSITION PRODUCTS: Hydrogen Fluoride: ACGIH TLV: 3 ppm ceiling 9. PHYSICAL AND CHEMICAL PROPERTIES

Clear, colorless liquid and vapor Gas at ambient temperatures 97.5 CH3CC1F2 ,CHC1F2, CHC1FCF3 Faint ethereal odor 1.21 @ 21.1°C (70°F) ~0.15 wt% @ 25°C (77°F) Neutral -35°C (-31.0°F) Not determined 107 psia @ 70°F 209.2 psia @ 130°F VAPOR DENSITY (air = 1.0): 3.4 EVAPORATION RATE: >1 COMPARED TO: CC14 = 1 % VOLATILES: 100 FLASH POINT: Not applicable (Flash point method and additional flammability data are found in Section 5.)

APPEARANCE: PHYSICAL STATE: MOLECULAR WEIGHT: CHEMICAL FORMULA: ODOR: SPECIFIC GRAVITY (water = 1.0): SOLUBILITY IN WATER (weight %): pH: BOILING POINT: FREEZING POINT: VAPOR PRESSURE:

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R-409A

10. STABILITY AND REACTIVITY NORMALLY STABLE? (CONDITIONS TO AVOID): The product is stable. Do not mix with oxygen or air above atmospheric pressure. Any source of high temperature, such as lighted cigarettes, flames, hot spots or welding may yield toxic and/or corrosive decomposition products. INCOMPATIBILITIES: (Under specific conditions: e.g. very high temperatures and/or appropriate pressures) ­ Freshly abraded aluminum surfaces (may cause strong exothermic reaction). Chemically active metals: potassium, calcium, powdered aluminum, magnesium and zinc. HAZARDOUS DECOMPOSITION PRODUCTS: Halogens, halogen acids and possibly carbonyl halides. HAZARDOUS POLYMERIZATION: Will not occur. 11. TOXICOLOGICAL INFORMATION IMMEDIATE (ACUTE) EFFECTS: HCFC-22: LC50 : 4 hr. (rat) - > 250,000 ppm Cardiac Sensitization threshold (dog) > 50,000 ppm HFC-142b: LC50 : 4 hr. (rat) - > 128,000 ppm Cardiac Sensitization NOEL ­ 50,000 ppm HFC-124: LC50 : 4 hr. (rat) - > 800,000 ppm Cardiac Sensitization threshold (dog) 75,000 ppm DELAYED (SUBCHRONIC AND CHRONIC) EFFECTS: HCFC-22: Subchronic NOEL (rat) ­ 10,000 ppm HFC-142b: Subchronic inhalation (rat) NOEL ­ 20,000 ppm HFC-124: Teratogenic NOEL (rat and rabbit pups) ­ 50,000 ppm (rat and rabbit dams) ­ 15,000 ppm Subchronic inhalation (rat and mouse) NOEL ­ 15,000 ppm 2 yr. Chronic Toxicity/Oncogeniticity Study (rat) NOEL ­ 50,000 ppm OTHER DATA: Lifetime exposure of male rats to HCFC-22 was associated with a small increase in salivary gland fibrosarcomas HFC-124, HFC-142b: Not active in four genetic studies 12. ECOLOGICAL INFORMATION Degradability (BOD): R-409A is a gas at room temperature; therefore, it is unlikely to remain in water. Octanol Water Partition Coefficient: Unknown for mixture

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R-409A

13. DISPOSAL CONSIDERATIONS RCRA Is the unused product a RCRA hazardous waste if discarded? If yes, the RCRA ID number is: Not a hazardous waste. Not applicable.

OTHER DISPOSAL CONSIDERATIONS: Disposal must comply with federal, state, and local disposal or discharge laws. R-409A is subject to U.S. Environmental Protection Agency Clean Air Act Regulations Section 608 in 40 CFR Part 82 regarding refrigerant recycling. The information offered here is for the product as shipped. Use and/or alterations to the product such as mixing with other materials may significantly change the characteristics of the material and alter the RCRA classification and the proper disposal method. 14. TRANSPORT INFORMATION US DOT PROPER SHIPPING NAME: US DOT HAZARD CLASS: US DOT PACKING GROUP: US DOT ID NUMBER: Liquefied gas, n.o.s., (Chlorodifluoromethane, Chlorodifluoroethane, Chlorotetrafluoroethane) 2.2 Not applicable UN3163

For additional information on shipping regulations affecting this material, contact the information number found in Section 1. 15. REGULATORY INFORMATION TOXIC SUBSTANCES CONTROL ACT (TSCA) TSCA INVENTORY STATUS: Components listed on the TSCA inventory OTHER TSCA ISSUES: None SARA TITLE III / CERCLA "Reportable Quantities" (RQs) and/or "Threshold Planning Quantities" (TPQs) exist for the following ingredients. INGREDIENT NAME No ingredients listed in this section SARA / CERCLA RQ (lb.) SARA EHS TPQ (lb.)

Spills or releases resulting in the loss of any ingredient at or above its RQ requires immediate notification to the National Response Center [(800) 424-8802] and to your Local Emergency Planning Committee. SECTION 311 HAZARD CLASS: IMMEDIATE PRESSURE

SARA 313 TOXIC CHEMICALS: The following ingredients are SARA 313 "Toxic Chemicals". CAS numbers and weight percents are found in Section 2. INGREDIENT NAME No ingredients listed in this section COMMENT

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R-409A

STATE RIGHT-TO-KNOW In addition to the ingredients found in Section 2, the following are listed for state right-to-know purposes. INGREDIENT NAME No ingredients listed in this section WEIGHT % COMMENT

ADDITIONAL REGULATORY INFORMATION: R-409A is subject to U.S. Environmental Protection Agency Clean Air Act Regulations at 40 CFR Part 82. WARNING: Do not vent to the atmosphere. To comply with provisions of the U.S. Clean Air Act, any residual must be recovered. Contains Pentafluoroethane (HFC-125) and Difluoromethane (HFC-32), greenhouse gases which may contribute to global warming. WHMIS CLASSIFICATION (CANADA): This product has been evaluated in accordance with the hazard criteria of the CPR and the MSDS contains all the information required by the CPR. FOREIGN INVENTORY STATUS: EU ­ EINECS # 2008719­ HCFC-22 # 2008918 ­ HCFC-142ba # 2206296 ­ HCFC-124 16. OTHER INFORMATION CURRENT ISSUE DATE: PREVIOUS ISSUE DATE: OTHER INFORMATION: December, 2008 August, 2007 HMIS Classification: Health ­ 1, Flammability ­ 1, Reactivity ­ 0 NFPA Classification: Health ­ 2, Flammability ­ 1, Reactivity ­ 0 ANSI / ASHRAE 34 Safety Group ­ A1 Regulatory Standards: 1. OSHA regulations for compressed gases: 29 CFR 1910.101 2. DOT classification per 49 CFR 172.101 Toxicity information per PAFT Testing 17. DISCLAIMER National Refrigerants, Inc. believes that the information and recommendations contained herein (including data and statements) are accurate as of the date hereof. NO WARRANTY OF FITNESS FOR ANY PARTICULAR PURPOSE, WARRANTY OF MERCHANTABILITY, OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, IS MADE CONCERNING THE INFORMATION PROVIDED HEREIN. The information provided herein relates only to the specific product designated and may not be valid where such product is used in combination with any other methods or use of the product and of the information referred to herein are beyond the control of National Refrigerants. National Refrigerants expressly disclaims any and all liability as to any results obtained or arising from any use of the product or reliance on such information.

____________________________________________________________________________________________________________ MSDS: R-409A Page 7 of 7 Current Issue Date: December, 2008

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